JE Pistons Tour Series GP (Gas Ported) Flat Top Forged Piston Set - SB Chevy 359 C.I. - Bore" 4.040" - Stroke: 3.500" - Rod Length: 6.000" 24-CHL-N-11 Hedman Hedders X-Treme Exhaust Equalizer

Hedman Hedders X-Treme Exhaust Equalizer H-Pipe 18830 3 in

Inserts restrict air/fuel entry and reduce power slightly to prevent wheel spin and range in size from 0

Rated at 190

During development

Knitted Nomex is used with top and bottom gauntlets

JE Pistons Tour Series GP (Gas Ported) Flat Top Forged Piston Set - SB Chevy 359 C.I. - Bore" 4.040" - Stroke: 3.500" - Rod Length: 6.000" 24-CHL-N-11 Hedman Hedders X-Treme Exhaust EqualizerSimilar to the Ultra Light GP, this piston has undergone engineering changes to handle higher horsepower 4 barrel applications (approximately 650 hp) and angle milled heads. Both 350 and 400 series accept oversize valves (intake pocket is 2. 255" and the exhaust pocket is 1. 870") and long duration, tight lobe separation cams. The ring grooves are precision machined for . 043, . 043, 3mm back cut rings with lateral gas ports for superior ring seal.